GTAC Observation Log 1. Date : 25/12/2020 2. Observation Sr. No. : 12721 3. Observer : Surajit Paul, Sameer Tanaji Salunkhe, PRATEEK GUPTA, Somak Raychaudhury, Pratik Dabhade 4. Observer\'s Email : paulsurajit1@gmail.com, 5. Project Name : Understanding the diffuse radio emission from Planck-SZ low-mass galaxy Clusters using the uGMRT and LoTSS-1 6. Project Code : ddtC157 7. Operator(s) : Shriram 8. Command File : /data1/gtac/cmd/ddtc157/25dec/obs.py 9. LTA File : /gsbifrdata1/25dec/ddtc157_25dec2020_gsb.lta, /gwbifrdata/25dec/ddtc157_25dec2020_gwb.lta 10. LogFlag File : ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 32 MHz,ON, IF-CH2 : 4+14 dB, 32 MHz,ON GSB SETTINGS : 14. GSB Host : gsbm1_shivneri 15. GSB Mode : Realtime 16. GSB LTA : 8 17. GSB CTRL : TGC 18. GSB Fstop : ON 19. GAIN EQ : ON 20. Stokes : Total_Intensity 21. Beam - 1 : OFF 22. Beam - 2 : OFF 23. ACQ BW : 33.333333 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 306 306 255 255 51 51 30. Integration Time : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. S02 : 130 pol low fringe. W02 : Not tracking properly 33. Note for Backup : 34. Start and End Time of Obs.(IST): 25 Dec 2020 07:10:00 - 25 Dec 2020 10:10:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :27 37. RFI Status : 38. Comments (During Observations) : ------------------GSB settings--------------------- GSB_CHAN_NUM,0:255:1 GSB_ACQ_BW,33.333333 GSB_FINAL_BW,0 GSB_ENV,1 GSB_STOKES,2 GSB_CNTRL,1 GSB_BEAM_1,0:1 GSB_BEAM_2,0:1 GSB_GAINEQ,1 GSB_BB_LO,149000000:156000000 GSB_LTA,8 GSB_HOSTS,0 GSB_FSTOP,1 GSB_EDGE_FRQ,0 GSB_CD_MODE,0 GSB_CHAN_MAX,256 GSB_MODE,0 GSB_IFR_DATASERVER,gsbm4 ------------------------------------------------------------------- -------------GWB settings------------------------------ GPU_PFB,0 GPU_PFB_TAPS,16 GPU_CHAN_NUM,0:8191:1 GPU_BEAM_S,0 GPU_EDGE_FRQ,0 GPU_FINAL_BW,1 GPU_VLT_BIT,8 GPU_FSTOP,1 GPU_FILRFI,0 GPU_DDC,0 GPU_CNTRL,1 GPU_GAINEQ,1 GPU_LTA,4 GPU_CHAN_MAX,8192 GPU_ENV,1 GPU_HOSTS,2 GPU_MODE,0 GPU_STOKES,2 GPU_TPA,0 GPU_ACQ_BW,200.0000 GPU_BEAM_BIT,16 ------------------------------------------------------------------ 07:14 : Started scan on 3C286~ 10 min. 07:35 : W02 started working. 07:35 : Started command file, \'/data1/gtac/cmd/ddtc157/25dec/obs.py\' 09:40 : W03 went off-source. 10:08 : Command file stopped and observing session over.